You're not paranoid, you're a concerned mommy.
OK, here's mine
One night our little angel threw up in bed. It looked like a giant worm. Kind of yellow-white and long and thin like spaghetti. I saved it until the next morning when I called the vet and insisted they let me bring him in and the "worm". They squeezed us in first thing. Dr M examined the dog then he looked at the now dried creature that I brought with me. He took it to his lab and came back in a few min laughing (he swore it was with me not at me). He said "do you use dental floss?" Well, yes, every night..both of us why. "this is what dental floss looks like after hanging around in a puppy tummy for a while." That was only a $35.00 appt. But they were having such a busy day they appreciated the good laugh.